Cass, fingers crossed for you! Were you on the minipill before you started TTC? I found that when I went off it, I got very similar symptoms to being pregnant. It was freaky because I never had them when I went off the pill to TTC for Sebastian. Anyway, I ended up getting AF but then a month later fell pregnant with this baby, so I'm not sure what to tell you! Anything is possible, I guess - good luck!